Date: Thu, 28 Apr 2016 15:41:55 -0700
Reply-To: Stuart MacMillan <stuartmacm@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Stuart MacMillan <stuartmacm@GMAIL.COM>
Subject: Re: Intermittent running problem.
In-Reply-To: <E7E88676-2F6A-4771-B0DE-80A7D8086F7C@comcast.net>
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Still possibly the problem, I'd take Jim up on his offer and find out now
that we know he doesn't have leaky injectors.
They do strange things when they go, and that can start with intermittent
weirdness. First, I had rough, cycling idle for a few weeks, then it
wouldn't idle at all. Since it's an automatic (son's rig actually) I got it
home keeping one foot on the gas pedal and the other on the brake to keep it
from dying at stops. Fiddled around with replacing the temp 2 & O2 sensors,
and then on starting it would go right up to 2000 rpm and stay there.
Swapping in a used one fixed it. When I looked at the receipts that came
with the van it had be diagnosed with a bad ICM (DUH, I didn't know what
that was then), and that tech just left it on the floor back there, where it
was quite wet. That finished it off quickly.
Putting an unsealed microprocessor in a wet location was not a great idea,
but they did last a long time. If we were keeping this engine I'd have
gotten him one of the rebuilt units that is sealed instead of a 30 year old
used one. My understanding is other VWs with Digifant FI have this unit
built into the ECU, a much better idea.
Stuart
-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
OlRivrRat
Sent: Thursday, April 28, 2016 1:37 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Intermittent running problem.
Stewart & Jim
Dennis didn't say that it went to 2000RPM on its own ~ He has to
"raise the idle to about 2000 rpms until it clears out 15-20 seconds."
On 28 Apr , 2016, at 10:58 AM, Jim Felder wrote:
> Dennis;
>
> Stuart is probably right. I have a couple of used ones. Send me a part
> number and I will send you one for postage so you can swap it out. If
> you don't want to buy it send it back, at least you'll know what the
> problem is or isn't.
>
> Jim
>
> On Thu, Apr 28, 2016 at 11:32 AM Stuart MacMillan
> <stuartmacm@gmail.com>
> wrote:
>
>> Classic symptoms of a failed idle stabilizer control unit:
>>
>> http://www.van-cafe.com/home/van/page_434_755/idle-stabilizer-control
>> -unit-r
>> ebuilt.html
>> <http://www.van-cafe.com/home/van/page_434_755/idle-stabilizer-contro
>> l-unit-rebuilt.html> Those exact symptoms happened to me--the 2000
>> rpm revving is typical, as is stalling out. These are all pushing 30
>> years old, and the internal components are failing.
>>
>> Stuart
>>
>> -----Original Message-----
>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On
>> Behalf Of Dennis Jowell
>> Sent: Thursday, April 28, 2016 3:13 AM
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: Re: Intermittent running problem.
>>
>> Checked injectors for leakage. They are perfect with no drips etc.
>> Checked temp sensor that is new and it is working. Worked on the
>> drive side injectors seals they are tight and seal properly . Still same
problem! Grr!
>>
>> Dennis Jowell
>> Scotch Hollow Farm
>> Newbury, Vermont
>>
>>
>>> On Apr 26, 2016, at 7:50 AM, Larry Alofs <lalofs@gmail.com> wrote:
>>>
>>> I am making two assumptions from your post:
>>> You have a modified VW 2.2 engine, not a Subaru 2.2
>>> That you used smoke to test for vacuum leaks around where the
>>> injectors go into the intake
>>>
>>> If the above is true...
>>> I think that the most likely cause for a flooded condition when
>> restarting would be a leaking injector dribbling fuel into the intake
>> until the pressure in the fuel system drops. I would test for this
>> by pulling each pair of injectors out of the intake without
>> disconnecting the hoses or wires and using a container to catch any
>> drips, pressurize the system by turning the key a couple of times.
>>>
>>> If your injectors pass the above test, I would then check the
>>> resistance
>> of temperature sensor 2 at various temperatures.
>>>
>>> And of course "check your grounds" :-)
>>>
>>> Good luck,
>>> Larry A.
>>>
>>>
>>>> On Mon, Apr 25, 2016 at 6:52 PM, Dennis Jowell
>>>> <dennisjowell@gmail.com>
>> wrote:
>>>> I'm trying to figure out this recent running issue on my 1988 Westy
>>>> with
>> a 2.2 engine. I start the engine and it runs fine. Drive for awhile
>> then shut it done for less than a minute and it runs like it is
>> flooded. On restarting I'll sit there and raise the idle to about
>> 2000 rpms until it clears out 15-20 seconds. After that it runs perfect.
>>>> Checked coil- good
>>>> Smoked the new fuel injectors, left side moved very faint smoke,
>>>> right side was perfect. Found no other apparent leaks.
>>>> Any thoughts?
>>>> . Trying to get out of here for our trip.
>>>>
>>>> Dennis Jowell
>>>> Scotch Hollow Farm
>>>> Newbury, Vermont
>>>
>>
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